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USA
- USA
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- USA
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12
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Description
Pre-Amplifier Speaker Distributor, 2 In 8 Out Switcher, Speaker Comparator, Signal Booster, With Volume Control And Earphone 16-600 ohms / Monitor Function 2-Channel Signal Switching InputProduct function introduction 1. The B981 is a powerful 8 channel high power pre amplifier which has dual sound input with a selector switch. 2. The product provides an independent 3. 5mm stereo earphone jack which can drive a variety of high impedance professional monitor earphones well. 3. Each channel can drive 16ohm 600 ohm and provide 8 stereo channels for output. 4. There are four independent volume knob adjustments to control the 8 channel for
Product function introduction1. The B981 is a powerful 8-channel high-power pre-amplifier which has dual-sound input with a selector switch.
2. The product provides an independent 3.5mm stereo earphone jack which can drive a variety of high-impedance professional monitor earphones well.
3. Each channel can drive 16ohm -600 ohm and provide 8 stereo channels for output.
4. There are four independent volume knob adjustments to control the 8-channel for simultaneous level signal output, presenting the rich sound quality, well-balanced bass, clear high frequency, and no other signal popping phenomenon, and ensuring lossless and undistributed sound.
5. It can provide +20dB high gain through any line level signal source, allowing running through longer cable lines or "buffering" to solve low volume problems.
6. You can use the product to connect line level signal source and power amplifier as a volume controller.
7. The RCA socket can match almost all other product interfaces. The product is powered by an AC AC9V transformer.
Product parameters
1. Input impedance: 100K Ohm
2. Input level: +14 dBV
3. Output impedance: 47 Ohm per output channel
4. Frequency response: 20 Hz - 20K Hz
5. Signal to noise ratio: Above 107dB
6. Total harmonic distortion: Less than 0.08%
7. Inter-modulation distortion: Less than 0.01%
8. Signal input: Two sets of stereo RCA socket
9. Signal output: Six sets of stereo RCA connectors and two sets of 3.5mm stereo earphone jack
10. Product power supply: AC 9V-12V
11. 4 independent channel stereo level volume output controlling knobs
12. Product net weight: 0.68kg
13. Packaged product weight: 0.82g
15. Product dimensions: Length 145mm x width 112mm x height 42mm
16. Packing dimensions: Length 260mm x width 185mm x height 65mm
Kit list
1. B981 Professional 8-channel preamp signal-amplifier speaker distributor x 1
2. AC9V Power adapter (US standard) line length 100CM x 1
Specification:
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 439 reviews
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Product Reviews
★★★★★ 5
Perfect little black chair
I bought this chair for four reasons:
1. My favorite color is black, but the company offers different color options.
2. The height of the chair was exactly what I was looking for. I did not want a tall back for the chair. The chair is close to the ground, which is a plus for me, my back, and my knees as I get older.
3. The chair comes with the option of wheels or no wheels; I chose the no wheels option, as I get dizzy and sick when I spin around for too long.
4. The chair’s wide back and seat design are perfect for me, since I prefer to sit criss-cross in a chair.
Pluses: It reclines, is comfy, and can be cleaned and moved easily.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 7, 2026
★★★★★ 5
Great chair, highly recommend!
Color: Cream, Size: PU Leather(No Wheels), Color: Cream, Size: PU Leather(No Wheels)
Very nice looking chair! It is comfortable, classy, and durable unless you have a cat like mine who used it for his claws. It was easy to put together. All of the hardware was of good quality and everything fit perfectly. My 14 year old daughter even put it together herself. We actually bought two of these. The other one is in my daughter‘s room for her vanity. I highly recommend them whether you’re buying it to sit crisscross or just for roomy comfort. It is a very comfortable chair and looks elegant.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 15, 2026
★★★★★ 5
New Favorite Desk Chair
This chair is exactly what I was looking for! It is simple to put together, very sturdy and very comfortable. I typically tend to sit criss cross while at my desk and I can do that very comfortably with it. Im a bigger girlie so a chair that can hold weight or deal with me shifting positions was very important to me.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
★★★★★ 4
Comfortable chair
Color: Cream, Size: PU Leather(No Wheels)
Ordered this chair for my daughter for Christmas. It's a great chair. It's very comfortable. She wishes it had wheels. I didn't see a way to add wheels to this base, either. Still a good chair. You have to make sure where you put it you can spin to get out of it. Pushing it back and forth on carpet doesn't work well.
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Reviewed in the United States on March 8, 2026
★★★★★ 5
Great Office Chair
I purchased this chair to replace the old one in my son's room. I really like the look and style of this chair. It was easy for me to assemble and the riser functions really good and the stability of the base is very good. I like the wide design as it has more back support and seat support.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 23, 2026
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